Question

I keep getting the second avg reaction rate wrong, pleade help

See page 563 05 Question (2 points) Nitrite lon reacts with ozone in aqueous solution, producing nitrate ion and oxygen: NO, (aq) +0,($) — NO, (aq) +0,(e) The following data were collected for this reaction at 298 K Calculate the average reaction rate between 0 and 100 us (microseconds) and between 200 and 300 us. Time (us) 100 200 300 10.1(M) 1.173.102 9.992.10 8.817.10 8.123.100

Answer 1

We know that from the definition of rate of the reaction - Rate of decompose of reactant Rate of the reaction =- with time. = - Change of concentration of reactant Change of time

Part-1 Here rate of reaction between Olls and 100 US = Change of concentration of Oz change of time : _ [03]t-100 us — [03]tzous 100 us -ous 9.992X10-3 M – 1.173 X10-2 M 100 us = 1.738 x 10-5 More Part 2 Rate of the reaction between 200 us and 300 MS - - Change of concentration of Iz change of time [03]7-300 us – [03]7-200 US 300 us - 200 MS 8.123 x 10-24–8.817X10 - 3M 100 us - 6.94 x 10-6 Mus